Windows & MAC By stenlinn Nov 20, 1986 Windows 1.0x Dec 9, 1987 Windows 2.x May 22, 1990 Windows 3.0 Aug 24, 1995 Windows 95 Jul 1, 1996 Windows 4.0 Jun 25, 1998 Windows 98 Feb 17, 1999 Windows 2000 Sep 13, 2000 Public Beta Kodiak Sep 14, 2000 Windows ME Mar 24, 2001 10.0 Cheetah Sep 25, 2001 10.1 Puma Oct 25, 2001 Windows XP Oct 24, 2003 10.3 Panther Apr 29, 2005 10.4 Tiger Nov 8, 2006 Windows Vista Oct 26, 2007 10.5 Leopard Jun 22, 2009 Windows 7 Aug 28, 2009 10.6 Snow Leopard Jul 20, 2011 10.7 Lion Jul 25, 2012 10.8 Mountain Lion Oct 26, 2012 Windows 8 Oct 26, 2012 Windows 8.1 Oct 22, 2013 10.9 Mavericks Oct 16, 2014 10.10 Yosemite Jun 8, 2015 10.11 El Capitan Jul 29, 2015 Windows 10